CVE-2023-53739

Tinycontrol LAN Controller v3 LK3 version 1.58a contains an unauthenticated vulnerability that allows remote attackers to download configuration backup files containing sensitive credentials. Attackers can retrieve the lk3_settings.bin file and extract base64-encoded user and admin passwords without authentication.

CVSS v4.0

9.9 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

0.64% chance of exploitation in the next 30 days, 48th percentile

Published

2025-12-09

Updated

2026-07-28

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51731

References

• CVE Record
• NVD entry

Related

• CVE-2023-53735
• CVE-2023-5374
• CVE-2023-53734
• CVE-2023-53740
• CVE-2023-5373
• CVE-2023-53741